CHAPTER 4 – MOVING CHARGES & MAGNETISM

Simple and complete notes to understand magnetism due to currents

These notes explain how moving charges create magnetic fields, including Biot–Savart law, Ampere’s law, Lorentz force, motion of charged particles in magnetic fields, cyclotron, and magnetic field due to current-carrying wires and loops. All key derivations and concepts from the chapter are covered crisply for perfect revision.